American composer, born on May 10, 1916, in Philadelphia, died January 29, 2011.

Particularly noted for his serial and electronic music, also one of the foremost contributors to the [l372382] – the principal centre for tape and electronic music in the United States.
Main electronic works: Vision and Prayer, Philomel (for voice and tape), Sounds and Words, Phonemena (for soprano and piano or tape), Composition for Synthesizer, Ensembles for Synthesizer.